Roll out cart

ABSTRACT

A container, such as a roll-out cart, includes a body portion and a lid. The body portion includes an outer wall extending upward from a base wall to a mouth of the body portion. The lid is secured to the body portion and pivotable between a closed position over the mouth and an open position. The lid includes an upper lid portion and a lower lid portion. The upper lid portion extends downward to an outer lip. The lower lid portion extends downward to an inner lip. The inner lip is inward of the outer wall of the body portion when the lid is in the closed position. The outer lip is outward of the outer wall of the body when the lid is in the closed position.

BACKGROUND

Containers for trash, recycling, or organic waste (compost), etc. oftenattract the interest of animals, such as rodents, dogs, raccoons, etc.Many containers include lids that latch, but some animals can pry underthe lid and force the container open. In some areas, bears may try toforce the container open.

SUMMARY

A container, such as a roll-out cart, includes a body portion and a lid.The body portion includes an outer wall extending upward from a basewall to a mouth of the body portion. The lid is secured to the bodyportion and pivotable between a closed position over the mouth and anopen position. The lid includes an upper lid portion and a lower lidportion. The upper lid portion extends downward to an outer lip. Thelower lid portion extends downward to an inner lip. The inner lip isinward of the outer wall of the body portion when the lid is in theclosed position. The outer lip is outward of the outer wall of the bodywhen the lid is in the closed position.

The lid may be thermoformed or rotomolded. An RFID tag may be securedbetween the upper lid portion and the lower lid portion.

The upper lid portion protects the interior of the body portion. Theouter lip of the upper lid portion fits tightly around the outerperimeter of the upper portion of the wall of the body portion includingthe lip when the lid is closed. The tight fit makes it challenging forthe bear to get its claws in-between the lid and the body portion. Thelower lid portion is attached to the upper lid portion on the interiorof the lid. The lower lid portion creates an added layer of protectionto the lid improving the overall strength. The lower lid portion alsoacts as a second barrier if the bear tries to pry the lid open. When abear pulls on the outer lip, the inner lip is pushed up against theinterior of the wall and blocks off the entry point of the container.

According to another feature disclosed herein, the body portion mayfurther include a lip projecting outward and downward from the outerwall. A reinforcement member may be received between the lip and theouter wall of the body portion. A plurality of ribs may extend from theouter wall to the lip, and the reinforcement member may be received in aplurality of apertures through the plurality of ribs. The body portionmay further include a handle portion spaced rearwardly of an upper edgeof the outer wall of the body portion, and the lid may be pivotablyconnected to the handle portion. An upper edge of the outer wall of thebody portion includes a rear portion from which the handle portionextends and a pair of side portions extending forward from the rearportion The reinforcement member may be a first reinforcement memberreceived between the lip and the outer wall along one of the sideportions.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a roll-out cart according to a firstembodiment.

FIG. 2 is a top view of the container of FIG. 1.

FIG. 3 is a front view of the container of FIG. 1.

FIG. 4 is a side view of the container of FIG. 1.

FIG. 5 is a top view of the lid of the container of FIG. 1.

FIG. 6 is a section view of the lid of FIG. 5 taken along line 6-6 ofFIG. 5.

FIG. 7 is a bottom view of the lid of FIG. 5.

FIG. 8 is a side view of the lid of FIG. 5.

FIG. 9 is an exploded perspective view of the lid of FIG. 5.

FIG. 10 is a side view of the upper portion of the roll-out cart of FIG.1.

FIG. 11 is a section view taken along line 11-11 of FIG. 10.

FIG. 12 is a perspective view of a roll-out cart according to a secondembodiment.

FIG. 13 is a side view of the roll-out cart of FIG. 12.

FIG. 14 is a top view of the roll-out cart of FIG. 12.

FIG. 15 is a front view of the roll-out cart of FIG. 12.

FIG. 16 is a top view of the lid of the roll-out cart of FIG. 12.

FIG. 17 is a section view through the lid taken along line 17-17 of FIG.16.

FIG. 18 is a bottom view of the lid of FIG. 16.

FIG. 19 is a side view of the lid of FIG. 16.

FIG. 20 is an upper perspective view of the lid of FIG. 16.

FIG. 21 is a bottom perspective view of the lid of FIG. 16.

FIG. 22 is a side view of an upper portion of the roll-out cart of FIG.12.

FIG. 23 is a section view taken along line 23-23 of FIG. 22.

FIG. 24 is a perspective view of a roll-out cart according to a thirdembodiment.

FIG. 25 is a side view of the roll-out cart of FIG. 24.

FIG. 26 is a top view of the roll-out cart of FIG. 24.

FIG. 27 is a front view of the roll-out cart of FIG. 24.

FIG. 28 is an exploded view of the roll-out cart of FIG. 24.

FIG. 29 is a bottom, rear perspective view of the body portion of theroll-out cart of FIG. 24.

FIG. 30 is an enlarged view of a portion of FIG. 29.

FIG. 31 is an exploded perspective view of the lid of the roll-out cartof FIG. 24.

FIG. 32 is a top view of the lid of FIG. 31.

FIG. 33 is a bottom view of the lid of FIG. 31.

FIG. 34 is a section view through a portion of the lid of FIG. 31.

FIG. 35 is an exploded view of a lid according to a fourth embodiment.

FIG. 36 is a section view through a portion of the lid of FIG. 35 on thebody portion of a roll-out cart.

FIG. 37 shows steps 1-3 of a method of making the lid of FIG. 35.

FIG. 38 shows steps 4-7 of a method of making the lid of FIG. 35.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

A container 10, more specifically a roll out container 10, is shown inFIG. 1. The container 10 includes a body portion 12 and a lid 14. Thebody portion 12 includes an outer wall 16 extending upward from a basewall to a mouth of the body portion 12 which is selectively covered bythe lid 14. An upper edge of the body portion 12 includes a lipprojecting outward and then downward. The lid 14 is hingeably connectedto a handle portion 20 spaced rearwardly of an upper edge of the bodyportion 12. The container 10 includes a latch 22 selectively securingthe body portion 12 to the lid 14 at a front edge of the container 10,i.e. opposite the handle portion 20. The latch 22 may be a gravity latchthat automatically releases the lid 14 from the body portion 12 when thecontainer 10 is inverted, such as by a lift arm on a collection truck.

FIG. 2 is a top view of the container 10. FIG. 3 is a front view. FIG. 4is a side view.

FIGS. 5-8 show top, section, bottom, and side views of the lid 14,respectively. As shown in FIG. 9, the lid 14 is initially formed in twopieces, upper lid portion 30 and lower lid portion 38. The upper lidportion 30 and lower lid portion 38 may be thermoformed and subsequentlyjoined or joined during thermoforming, but are shown in an exploded viewin FIG. 9. The upper lid portion 30 includes an outer lip 32 extendingdownward from a periphery of an upper panel portion 34. The lower lidportion 38 includes an inner lip 42 extending downward from a peripheryof a lower panel portion 44 having a large upper planar portion 40.

FIG. 10 is a side view of the container 10. FIG. 11 is a section viewtaken along line 11-11 of FIG. 10. As shown in FIG. 11, the upper lidportion 30 and lower lid portion 38 are joined (e.g. via adhesive,welding, fasteners, thermoforming, etc) to one another. The upper lidportion 30 and lower lid portion 38 diverge near the outer lip 32 andthe inner lip 42 so that the outer lip 32 and the inner lip 42 arespaced apart to receive the upper end of the wall 16 of the body portion12 and the lip 18 of the body portion 12 therebetween when the lid 14 isclosed. The outer lip 32 extends downward to contact the upper surfaceof the lip 18 and then extends outward and then downward over theoutside of the lip 18. The inner lip 42 extends downward along theinside of the upper portion of the wall 16 of the body portion 12.

The upper lid portion 30 protects the interior of the body portion 12.The outer lip 32 of the upper lid portion 30 fits tightly around theouter perimeter of the upper portion of the wall 16 of the body portion12 including the lip 18 when the lid 14 is closed. The tight fit makesit challenging for the bear to get its claws in-between the lid 14 andthe body portion 12. The lower lid portion 38 is attached to the upperlid portion 30 on the interior of the lid 14. The lower lid portion 38creates an added layer of protection to the lid 14 improving the overallstrength. The lower lid portion 38 also acts as a second barrier if thebear tries to pry the lid 14 open. When a bear pulls on the outer lip32, the inner lip 42 is pushed up against the interior of the wall 16and blocks off the entry point of the container 10.

FIG. 12 shows a second embodiment of a container 110, including the bodyportion 12 previously described with handle 20 and latch 22, but with analternate lid 114. The alternate lid 114 is rotationally molded (orrotomolded) but has features similar to that of the first embodiment.

FIGS. 13-15 are side, top and front view of the container 110,respectively.

FIG. 16 is a top view of the lid 114. FIG. 17 is a section view throughthe lid 114 taken along line 17-17 of FIG. 16. FIG. 18 is a bottom viewof the lid 114. FIG. 19 is a side view of the lid 114.

FIG. 20 is an upper perspective view of the lid 114. The lid 114includes an upper wall portion 130 having an outer lip 132 extendingdownward from a periphery thereof. FIG. 21 shows a bottom perspectiveview of the lid 114. The lid 114 includes a lower wall portion 138having an inner lip 142 extending downward from a periphery, and spacedinward from the lip 132. A plurality of radial ridges 144 reinforce thelower wall portion 138. The radial ridges 144 radiate outward of anannular ridge 146. Inside the annular ridge 146 a cylindrical rib 148extends to the upper wall portion 130 of the lid 14.

FIG. 22 is a side view of the container 110. FIG. 23 is a section viewthrough the container 110 of FIG. 22. As shown, the lid 114 is a hollow,rotomolded single piece of plastic. The outer lip 132 is double-walledor hollow and is spaced outward of the inner lip 142, which is alsodouble-walled or hollow, due to the rotomolding process. When the lid114 is closed, the outer lip 132 contacts the upper surface of the lip18 and the inner lip 142 is inward of the wall 16 of the body portion.If a bear tries to pry under the outer lip 132 of the lid 114, this willcause the inner lip 142 to impinge upon the inner surface of the wall 16of the body portion 12, thereby blocking access to the interior of thecontainer 110.

A container 210, more specifically a roll out container 210, accordingto a third embodiment is shown in FIG. 24. The container 210 includes abody portion 212 similar to that described above except as describedbelow or as shown in the drawings. The container 210 also includes analternative lid 214. The body portion 212 includes an outer wall 216extending upward from a base wall to a mouth of the body portion 212which is selectively covered by the lid 214. An upper edge of the bodyportion 212 includes a lip 218 projecting outward and then downward. Thelid 214 is hingeably connected to a handle portion 220 spaced rearwardlyof an upper edge of the body portion 212. An upper surface of the lid214 may include a molded-in logo 246, such as an image of the face of abear, and a plurality of molded-in logos 248 about the periphery of thelid 214, such as bear claws. The container 210 includes a latch 222selectively securing the body portion 212 to the lid 214 at a front edgeof the container 210, i.e. opposite the handle portion 220. The latch222 may be a gravity latch that automatically releases the lid 214 fromthe body portion 212 when the container 210 is inverted, such as by alift arm on a collection truck.

FIG. 25 is a top view of the container 210. FIG. 26 is a front view.FIG. 27 is a side view.

FIG. 28 is an exploded view of the container 210. The latch 222 includesa lower portion 222 a secured to the body portion 212 and an upperportion 222 b secured to the lid 214. A grab bar 250 is secured to thefront of the body portion 212. Hinge pins 252 secure the lid 214 to thehandle portion 220 of the body portion 212. An axle 254 rotatablysecures the wheels 256) to the body portion 212. Reinforcement rods 258are received in the lip 218 at the sides of the body portion 212. Anoptional RFID tag 272 may be mounted on or inside the lid 214.

FIG. 29 is a bottom, rear perspective view of the body portion 212. FIG.30 is an enlarged view of a portion of FIG. 29, showing the underside ofthe lip 218 at one side of the body portion 212. A plurality of ribs 260extend from the side wall 216 to the lip 218. An aperture is formedthrough each rib 260 so that the reinforcement rod 258 can be insertedinto the apertures 262. The reinforcement rod 258 can be inserted fromthe rear of the body portion 212 through the rearward-most aperture 262and into the ribs 260 connecting the lip 218 to the side of the bodyportion 212. The reinforcement rods 258 are preferably metal rods 258installed without any attachment hardware by sliding them in from theback of the body portion 212. The reinforcement rods 258 add support tothe body portion 212 to keep it from flexing or bending when an animalpresses the side wall 216 inward. This feature adds strength to theoverall design without jeopardizing the structural integrity of the bodyportion 212 design. A similar reinforcement rod may be added to thefront edge of the body portion 212.

As shown in FIG. 31, the lid 214 is initially formed in two pieces,upper lid portion 230 and lower lid portion 238. The upper lid portion230 and lower lid portion 238 in this example are thermoformed andsubsequently joined, but are shown in an exploded view in FIG. 31. Theupper lid portion 230 includes an upper lip 232 extending downward froma periphery of an upper panel portion 234. The lower lid portion 238includes a lower lip 242 extending downward from a periphery of a lowerpanel portion 244, which is convex upwardly and has a large upper planarportion 240.

FIG. 32 is a top view of the upper lid portion 230. FIG. 33 is a bottomview of the lower lid portion 238.

FIG. 34 is a section view taken through the side edge of the container210. As shown in FIG. 34, the upper lid portion 230 and lower lidportion 238 are joined (e.g. via twin sheet thermoforming, adhesive,welding, fasteners, etc) to one another. The upper lid portion 230 andlower lid portion 238 connect (among other places) at the upper lip 232and the lower lip 242. As shown, the lower lid portion 238 includes aninner lip 266 is spaced inward of the lower lip 242 to receive the upperend of the wall 216 of the body portion 212 and the lip 218 of the bodyportion 212 therebetween when the lid 214 is closed. The inner lip 266extends about at least the front and sides of the lower lid portion 238(also see FIG. 31). The upper lip 232 and lower lip 242 extend downwardover the outside of the lip 218. The inner lip 266 extends downwardalong the inside of the upper portion of the wall 216 of the bodyportion 212. The lower panel portion 244 extends upward and inward fromthe bottom of the inner lip 266, creating a double-walled, hollow lip.

The upper lid portion 230 protects the interior of the body portion 212.The upper lip 232 of the upper lid portion 230 and the lower lip 242 ofthe lower lid portion 238 fit tightly around the outer perimeter of theupper portion of the wall 216 of the body portion 212 including the lip218 when the lid 214 is closed. The tight fit makes it challenging forthe bear to get its claws in-between the lid 214 and the body portion212. The lower lid portion 238 is attached to the upper lid portion 230on the interior of the lid 214. The lower lid portion 238 creates anadded layer of protection to the lid 214 improving the overall strength.The lower lid portion 238, particularly the inner lip 266, also acts asa second barrier if the bear tries to pry the lid 214 open. When a bearpulls on the upper lip 232 and the lower lip 242, this pulls the innerlip 266 against the interior of the wall 216 and blocks off the entrypoint of the container 210. In other words, the more the lid 214 isflexed or warped, the more the lower lid portion 238, particularly theinner lip 266, seals against the inner surface of the body portion 212,both resisting deformation of the lid 214 and closing off any entry intothe container 210.

An exploded view of an alternate lid 314 is shown in FIG. 35. The lid314 is the same as the lid 214 of FIG. 31, with the addition of an RFIDtag 372. The lid 314 includes upper lid portion 330 and lower lidportion 338. The upper lid portion 330 includes an upper lip 332extending downward from a periphery of an upper panel portion 334. Thelower lid portion 338 includes a lower lip 342 extending downward from aperiphery of a lower panel portion 344, which is convex upwardly and hasa large upper planar portion 340. The lower lid portion 338 alsoincludes a front platform 368, which is higher than the periphery of thelower lid portion 338. The front platform 368 is adjacent a front edgeof the lower lid portion 338 and includes an upper surface 370. The RFIDtag 372 is positioned on the upper surface 370. The RFID tag 372 can beany available RFID tag, such as passive, active, battery-assisted,programmable, etc.

FIG. 36 is a section view taken through the side edge of the container310. As shown in FIG. 36, the upper lid portion 330 and lower lidportion 338 are joined (e.g. via twin sheet thermoforming, or adhesive,welding, fasteners, etc) to one another. The upper lid portion 330 andlower lid portion 338 connect (among other places) at the upper lip 332and the lower lip 342. As shown, the lower lid portion 338 includes aninner lip 366 is spaced inward of the lower lip 342 apart to receive theupper end of the wall 316 of the body portion 312 and the lip 318 of thebody portion 312 therebetween when the lid 314 is closed. The inner lip366 extends about at least the front and sides of the lower lid portion338 (also see FIG. 31). The upper lip 332 and lower lip 342 extenddownward over the outside of the lip 318. The inner lip 366 extendsdownward along the inside of the upper portion of the wall 316 of thebody portion 312. The lower panel portion 344 of the lower lid portion338 extends upward from the inner lip 366 to the platform 368. The lowerpanel portion 344 extends upward and inward from the bottom of the innerlip 366, creating a double-walled, hollow lip. The RFID tag 372 issecured to the upper surface 370 of the platform 368, and is sealedbetween the lower lid portion 338 and upper lid portion 330. The RFIDtag 372 is protected inside the lid 314 between the upper lid portion330 and the lower lid portion 338, but can still be easily read by anRFID reader.

FIG. 37 shows Steps 1-3 of a method of making the lid 314. In Step 1,RFID tags 372 are secured (such as by adhesive tape or glue) to apolymer sheet 376 (such as HDPE). In Step 2, the sheet 376 and RFID tags372 are heated in an oven (e.g. at 375 degrees) for thermoformingprocess, which fuses the RFID tags 372 to the sheet 376.

In Step 3, the sheet 376 and RFID tags 372 undergo the thermoformedmolding process on a bottom mold 380. The sheet 376 and RFID tags 72 maybe formed between bottom mold 380 and top mold 378.

FIG. 38 shows Steps 4-6 of the method. In Step 4, the top polymer sheet382 (e.g. HDPE) is inserted into the mold between top mold 378 and thebottom sheet 376. In Step 5, the top sheet 382 is vacuum formed to thetop mold 378. The mold halves 378, 380 are brought together and thesheets 382, 376 are fused to one another at multiple points. The RFIDtags 372 are embedded inside the lid 314 inside hollow cavities betweenthe sheets 382, 376. The lid 314 is removed from the mold and trimmed.The RFID tags 372 are now embedded inside each lid 314 and no longervisible on the exterior of the lid 314 but easily readable by an RFIDreader.

In accordance with the provisions of the patent statutes andjurisprudence, exemplary configurations described above are consideredto represent a preferred embodiment of the invention. However, it shouldbe noted that the invention can be practiced otherwise than asspecifically illustrated and described without departing from its spiritor scope.

What is claimed is:
 1. A container comprising: a body portion includingan outer wall extending upward from a base wall to a mouth of the bodyportion; and a lid secured to the body portion, the lid including anupper lid portion and a lower lid portion secured to one another andboth pivotable together between a closed position over the mouth and anopen position, the upper lid portion extending downward to an outer lip,the lower lid portion extending downward to an inner lip, wherein theinner lip is inward of the outer wall of the body portion when the lidis in the closed position and the outer lip is outward of the outer wallof the body when the lid is in the closed position.
 2. The container ofclaim 1 wherein the body portion further includes a lip projectingoutward and then downward from an upper edge of the body portion.
 3. Thecontainer of claim 2 wherein the outer lip of the lid contacts an uppersurface of the lip of the body portion when the lid is in the closedposition.
 4. The container of claim 3 wherein the outer lip of the lidextends outward and then downward over an outer surface of the lip ofthe body portion when the lid is in the closed position.
 5. Thecontainer of claim 1 wherein the lower lid portion includes a lower lipspaced outward of the inner lip, wherein the lower lip is outward of theouter wall of the body when the lid is in the closed position.
 6. Thecontainer of claim 5 wherein the outer lip of the upper lid portion issecured to the lower lip of the lower lid portion.
 7. The container ofclaim 6 further including a panel spaced inward of the inner lip andextending upward from a lower portion of the inner lip.
 8. The containerof claim 1 wherein the inner lip of the lid is hollow.
 9. The containerof claim 8 wherein the outer lip of the lid is hollow.
 10. The containerof claim 9 wherein the lid is rotomolded.
 11. The container of claim 1further including an RFID tag between the upper lid portion and thelower lid portion.
 12. The container of claim 11 wherein the lower lidportion includes a platform higher than the lower lip, wherein the RFIDtag is secured to the platform.
 13. The container of claim 12 whereinthe body portion includes a handle portion spaced rearwardly of an upperedge of the outer wall of the body portion, wherein the lid is pivotablyconnected to the handle portion, the container further including wheelssupporting the body portion.
 14. The container of claim 13 furtherincluding a latch configured to selectively secure the lid in a closedposition on the body portion.
 15. A method of making a container lidincluding the steps of: a) thermoforming an upper lid portion; b)thermoforming a lower lid portion; c) placing an RFID tag between theupper lid portion and the lower lid portion; and d) securing the upperlid portion and the lower lid portion together.
 16. The method of claim15 wherein said step a) further includes forming an upper lip projectingdownward from a periphery of the upper lid portion and wherein said stepb) further includes forming a lower lip projecting downward from aperiphery of the lower lid portion.
 17. The method of claim 16 whereinsaid step d) further includes joining the upper lip to the lower lip.18. The method of claim 16 wherein said step d) further includes joiningthe upper lip to the lower lip via twin sheet thermoforming, adhesive,welding, or fasteners.
 19. The method of claim 16 wherein said step b)further includes forming a double-walled hollow inner lip spaced inwardof the lower lip.
 20. The method of claim 16 wherein said step b)further includes forming a platform higher than a periphery of the lowerlid portion, and wherein the RFID is positioned on the platform.